Cast cutting guide



July 2, 1940. JIULMAN, JR

CAST CUTTING GUIDE Filed Nov. 15, 1938 2 Sheets-Shet 1 Invento; JZZ/Wew fl/ma/g/n A ttorneys y 2, 1940, J. ULMAN, JR 2,206,339

CAST CUTTING GUIDE Filed Nov. 15, 1938 2 Sheets-Sheet 2 Inventor P atentecl July 2, 1946 a l g 2,206,339

v UNITED STATES PATENT OFFlCE CAST CUTTING GUIDE James Ulman, J12, Chicago, Ill.

Application November 15, 1938, Serial No. 240,555

1 Claim. (01. 128-91) This invention appertains to new and useful guide groove l3. From the bottom of this guide improvements in guide means for facilitating the groove I3 openings [4 extend through the strip cutting of casts suchas are used on leg fractures and these serve to alTord ventilation to the leg. and on other members of the body. Another form of the invention is shown in The principal object of the present invention is Figure 4 wherein the. sloping sides 9, sloping to to provide a guide which will leave space under wards the edges from the trough 13a have V- the cast to permit the usual cast cutter to cut shaped notches I5 therein and the edge portions entirely through the cast without chance of inof the strip at these notches are bevelled as at jury to the patient. IE to prevent any spot pressure on the leg.

b Other objects and advantages of the invention The object in having the strip notched in the .will become apparent to the reader of the folmanner shown in Figures 4 and 5 is so that the lowing specification: strip can be disposed in curves and in angles to .In the drawings: take care of various distortions it must follow..

Figure 1 represents a fragmentary side eleva- Still another form of the invention is shown in i tional View showing the guide in use with a cast. Figure 6 wherein the strip H has the bevelled Figure 2 is a section on line 2-2 of Figure 1. portions I8IB extending downwardly from the Figure 3 is a fragmentary perspective view of upper edges of the walls of the trough [9. This one form of guide. trough is of dovetail shape so that there is very Figure 4 is a side elevational view of another little likelihood of any of the cast getting into form of guide. the guide channel. Figure'5 is a fragmentary perspective View of The form of the invention shown in Figure 7 the form of guide shown in Figure 4. shows a transversely arcuate strip 20 which on Figure 6 is a perspective view of a third form of its outer side has the trough 2| formed for guidguide. ing the cast-cutting instrument (not shown). 5 Figure 7 is a perspective view of a fourth form This type of guide is especially adapted for small of guide. members such as the wrist and of course may be Referring to the drawings wherein like numermade in small sizes for the fingers. als designate like parts, it can be seen in Figures While the foregoing specification sets forth the 1 and 2 that numeral 5 represents the cast which invention in specific terms, it is to be understood is disposed around the leg 6 in the usual manner that numerous changes in the shape, size and mawith the exception that the guide 1 is first disterials may be resorted to without departing from posed against the leg or a first wrapping around the spirit and scope of the invention as claimed the leg as denoted by numeral 8. As can be seen hereinafter.

in the drawings, each of these guides has a slot, Having described the invention what is claimed i which of course leaves'a space after the cast 5 asnew is: u

has been disposed over the guide in convoluting A cast cutting guide for use in fracture casts or wrapping the material around the leg. comprising an elongated strip formed with a cast The form of the invention shown in Figure 3 cutter guide groove therein, said strip being consists of an elongated strip ,9 preferably of some formed with ventilating openings extending l suitable resilient material such as rubber, this through the strip from the bottomof the said 49 strip being preferably flat on its bottom side 9 groove. while its top side slopes towards its edge portions JAMES ULMAN, JR. H and I2 from the side walls of the trough or l 

